This paper investigates the demand response and energy supply system planning, and proposes a two-stage co-optimization model considering electric vehicle (EV), residence and multi-generation system. In the first stage, a demand response model of EV is established to achieve optimal dispatch between EV and residence and realize the optimization objectives of minimizing charging and discharging costs and the variance of EV-residence superimposed load. In the second stage, a residential combined cooling, heating and power system integrated with multiple renewable energy sources, including solar and geothermal energy, is constructed to establish a demand response model for residence with electric, heating and cooling loads, with the optimization objectives of minimizing the system comprehensive operating cost and CO2 emissions, to achieve the optimal scheduling between residence and system. Taking a residential district in Changsha as an example, the effectiveness of the proposed model is verified by comparing the optimization performances of different scenarios on typical days in winter and summer. The results show that charging and discharging costs are reduced by 36.7% and 68.5% on typical days scenario 4 in winter and summer, EV and residence superimposed load variance is decreased by 82.7% and 59.0%, system comprehensive operating costs are reduced by 8.1% and 14.7%, and system CO2 emissions are decreased by 11.3% and 15.4%, which are significantly better than other scenarios. In addition, the reliability of a multi-generation system under extreme weather is further verified, and overall optimization performances decrease with the increasing number of EV.
为此,本文统筹考虑用户侧柔性资源,并将其分为EV电负荷、住宅电负荷和住宅冷热负荷,分别构建了EV和住宅参与需求响应的模型,搭建住宅冷热电联产系统(combined cooling, heating and power system,CCHP). 提出了包含EV-住宅-系统的两阶段协同优化模型,阶段1通过EV-住宅调度,以减少充放电成本和EV-住宅叠加负荷方差;阶段2通过住宅-系统调度,以减少系统综合运行成本和系统CO2排放量. 最后,以长沙市某住宅小区为案例,采用本文所提两阶段协同优化模型验证其有效性和可行性.
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基金资助
国家自然科学基金资助项目(51806021)
National Natural ScienceFoundation of China(51806021)
湖南省科技创新计划资助项目(2024RC3176)
Science and Technology Innovation Program of Hunan Province(2024RC3176)
湖南省自然资源厅科技计划项目(HBZ20240118)
Research Foundation of the Department of Natural Resources of Hunan Province(HBZ20240118)